31.Network Security

Message_____ means that the data must arrive at the receiver exactly as sent.

• confidentiality
• integrity
• authentication
• none of the above

Message _______ means that the receiver is ensured that the message is coming from the intended sender, not an imposter.

• confidentiality
• integrity
• authentication
• none of the above

A(n) ________function creates a message digest out of a message.

• encryption
• decryption
• hash
• none of the above

The secret key between members needs to be created as a ______ key when two members contact KDC.

• public
• session
• complimentary
• none of the above

The ________ criterion ensures that a message cannot easily be forged.

• one-wayness
• weak-collision-resistance
• strong-collision-resistance
• none of the above

A(n) _____ is a trusted third party that assigns a symmetric key to two parties.

• KDC
• CA
• KDD
• none of the above

A witness used in entity authentication is ____________.

• something known
• something possessed
• something inherent
• all of the above

A _______ message digest is used as an MDC.

• keyless
• keyed
• either (a) or (b)
• neither (a) nor (b)

A(n)______ creates a secret key only between a member and the center.

• CA
• KDC
• KDD
• none of the above

________ means to prove the identity of the entity that tries to access the system’s resources.

• Message authentication
• Entity authentication
• Message confidentiality
• none of the above